EP3273141A4 - Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung - Google Patents

Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung Download PDF

Info

Publication number
EP3273141A4
EP3273141A4 EP16764835.1A EP16764835A EP3273141A4 EP 3273141 A4 EP3273141 A4 EP 3273141A4 EP 16764835 A EP16764835 A EP 16764835A EP 3273141 A4 EP3273141 A4 EP 3273141A4
Authority
EP
European Patent Office
Prior art keywords
television receiving
illumination
display device
display
receiving device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16764835.1A
Other languages
English (en)
French (fr)
Other versions
EP3273141A1 (de
Inventor
Akira Gotou
Keitaro Matsui
Masanobu Harada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Publication of EP3273141A1 publication Critical patent/EP3273141A1/de
Publication of EP3273141A4 publication Critical patent/EP3273141A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/70—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing phosphorus
    • C09K11/701—Chalcogenides
    • C09K11/703—Chalcogenides with zinc or cadmium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/505—Wavelength conversion elements characterised by the shape, e.g. plate or foil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133613—Direct backlight characterized by the sequence of light sources

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)
  • Light Guides In General And Applications Therefor (AREA)
EP16764835.1A 2015-03-16 2016-03-10 Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung Withdrawn EP3273141A4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015052005 2015-03-16
JP2015054627 2015-03-18
PCT/JP2016/057537 WO2016148005A1 (ja) 2015-03-16 2016-03-10 照明装置、表示装置、及びテレビ受信装置

Publications (2)

Publication Number Publication Date
EP3273141A1 EP3273141A1 (de) 2018-01-24
EP3273141A4 true EP3273141A4 (de) 2019-02-20

Family

ID=56918821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16764835.1A Withdrawn EP3273141A4 (de) 2015-03-16 2016-03-10 Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung

Country Status (5)

Country Link
US (1) US10222543B2 (de)
EP (1) EP3273141A4 (de)
JP (1) JP6408129B2 (de)
CN (1) CN107407834B (de)
WO (1) WO2016148005A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104864318B (zh) * 2015-06-12 2017-05-03 深圳市华星光电技术有限公司 背光模组及显示装置
JP6607146B2 (ja) * 2016-06-13 2019-11-20 豊田合成株式会社 発光エンブレム
JP6542184B2 (ja) * 2016-12-01 2019-07-10 ミネベアミツミ株式会社 面状照明装置
CN107045228A (zh) * 2017-05-16 2017-08-15 武汉华星光电技术有限公司 一种液晶显示器的背光系统
US11175535B2 (en) * 2018-04-10 2021-11-16 Huizhou China Star Optoelectronics Technology Co., Ltd. Backlight module, liquid crystal display, and spliced display device
CN112334703B (zh) 2018-06-21 2023-12-26 市光工业株式会社 车辆用灯具的光源单元以及车辆用灯具
KR20200006205A (ko) * 2018-07-09 2020-01-20 삼성디스플레이 주식회사 표시장치
TW202020540A (zh) * 2018-11-21 2020-06-01 佳世達科技股份有限公司 背光模組
CN209311845U (zh) * 2019-01-28 2019-08-27 深圳市元科摄影器材有限公司 一种卷布灯
JP2020174007A (ja) * 2019-04-12 2020-10-22 市光工業株式会社 光源ユニット、移動体用発光装置
CN110764651B (zh) * 2019-10-25 2022-05-13 业成科技（成都）有限公司 显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10308113A (ja) * 1997-05-08 1998-11-17 Enplas Corp サイドライト型面光源装置
US20080165307A1 (en) * 2007-01-09 2008-07-10 Masaya Adachi Lighting Unit and Display Equipment Provided Therewith
US20090034230A1 (en) * 2007-07-31 2009-02-05 Luminus Devices, Inc. Illumination assembly including wavelength converting material having spatially varying density
US20150009454A1 (en) * 2013-07-03 2015-01-08 Sony Corporation Phosphor sheet, light emitting unit, and display unit

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1939522A4 (de) 2005-08-17 2013-04-03 Fujifilm Corp Flächige beleuchtungsvorrichtung
TW200912478A (en) * 2007-07-31 2009-03-16 Luminus Devices Inc Illumination assembly including wavelength converting material having spatially varying density
JP4926905B2 (ja) 2007-09-28 2012-05-09 富士フイルム株式会社 面状照明装置
US8755005B2 (en) * 2008-09-24 2014-06-17 Koninklijke Philips N.V. Thin edge backlight with LEDS optically coupled to the back surface
JP2010097908A (ja) * 2008-10-20 2010-04-30 Fujifilm Corp バックライトユニットおよび液晶表示装置
US8343575B2 (en) 2008-12-30 2013-01-01 Nanosys, Inc. Methods for encapsulating nanocrystals and resulting compositions
JP2012099362A (ja) * 2010-11-02 2012-05-24 Toshiba Corp 発光装置
CN103228983A (zh) 2010-11-10 2013-07-31 纳米系统公司 量子点薄膜、照明器件及照明方法
TWI451169B (zh) * 2011-08-04 2014-09-01 Au Optronics Corp 背光模組及使用其之顯示裝置
JP2013175288A (ja) * 2012-02-23 2013-09-05 Sharp Corp バックライト装置、表示装置、及びテレビ受信装置
JP5796038B2 (ja) * 2013-06-18 2015-10-21 デクセリアルズ株式会社 蛍光体シート
TW201516537A (zh) * 2013-10-29 2015-05-01 友達光電股份有限公司 背光模組與應用其之顯示面板
KR102244847B1 (ko) * 2014-12-31 2021-04-28 엘지디스플레이 주식회사 초집광 도광필름 및 이를 이용한 평판 표시장치용 박막형 백 라이트 유닛

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10308113A (ja) * 1997-05-08 1998-11-17 Enplas Corp サイドライト型面光源装置
US20080165307A1 (en) * 2007-01-09 2008-07-10 Masaya Adachi Lighting Unit and Display Equipment Provided Therewith
US20090034230A1 (en) * 2007-07-31 2009-02-05 Luminus Devices, Inc. Illumination assembly including wavelength converting material having spatially varying density
US20150009454A1 (en) * 2013-07-03 2015-01-08 Sony Corporation Phosphor sheet, light emitting unit, and display unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2016148005A1 *

Also Published As

Publication number Publication date
US10222543B2 (en) 2019-03-05
WO2016148005A1 (ja) 2016-09-22
CN107407834A (zh) 2017-11-28
CN107407834B (zh) 2021-02-19
EP3273141A1 (de) 2018-01-24
JPWO2016148005A1 (ja) 2018-01-11
JP6408129B2 (ja) 2018-10-17
US20180045881A1 (en) 2018-02-15

Similar Documents

Publication Publication Date Title
EP3279548A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3273143A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3270037A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3263973A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3484147A4 (de) Videoanzeigevorrichtung
EP3486708A4 (de) Dimmvorrichtung, bildanzeigevorrichtung und anzeigevorrichtung
EP3593606A4 (de) Anzeigevorrichtung
EP3279549A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3354961A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfänger
EP3596538A4 (de) Anzeigevorrichtung
EP3264169A4 (de) Optische vorrichtung, anzeigevorrichtung und elektronische vorrichtung
EP3282174A4 (de) Beleuchtungsvorrichtung und anzeigevorrichtung
EP3376366A4 (de) Inhaltsanzeige mit mehreren anzeigevorrichtungen
EP3273141A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfangsvorrichtung
EP3561798A4 (de) Anzeigesystem, elektronische vorrichtung und beleuchtungssystem
EP3611718A4 (de) Anzeigevorrichtung
EP3287689A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung sowie fernsehempfangsvorrichtung
EP3588942A4 (de) Anzeigevorrichtung
EP3296617A4 (de) Lichtemittierende vorrichtung, anzeigevorrichtung und beleuchtungsvorrichtung
EP3270036A4 (de) Beleuchtungsvorrichtung, anzeigevorrichtung und fernsehempfänger
EP3267434A4 (de) Anzeigevorrichtung, endgerätevorrichtung und anzeigesystem
EP3163559A4 (de) Pixelschaltung, anzeigetafel und anzeigevorrichtung
EP3163562A4 (de) Pixelschaltung, anzeigetafel und anzeigevorrichtung
EP3346319A4 (de) Videoanzeigevorrichtung
EP3637233A4 (de) Anzeigevorrichtung

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20170830

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
RIC1 Information provided on ipc code assigned before grant

Ipc: F21V 8/00 20060101AFI20180929BHEP

A4 Supplementary search report drawn up and despatched

Effective date: 20190118

RIC1 Information provided on ipc code assigned before grant

Ipc: F21V 8/00 20060101AFI20190114BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220302

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20220629